Nanotechnology: Fe3+/Fe2+ - ZnO nanostructures: Synergetic effect of annealing temperature on Structural, Optical and Dielectric properties


  • Anil Kaushik Baba Mastnath University, Rohtak.
  • Sunil Kumar Chaudhary Baba Mastnath University, Rohtak.
  • Ajay Kumar Mann Pandit Neki Ram Sharma Government College, Rohtak.


Fe3/Fe2, Doped Zinc Oxide, SEM, Photoluminescence, FT-IR, Impedance


The influence of Fe3+ ion substitution on structural, optical and dielectric properties of ZnO nanostructures synthesised using the co-precipitation process is discussed in this paper. The wurtzite hexagonal structure with space group P63mc is confirmed by the XRD (X-Ray Diffraction) results. The domain size, intra-plane spacing and cell volume of the Fe3+/ZnO-400 samples were calculated to be 38.6 nm, 2.6903 nm and 57.44 Å3 respectively. SEM was used to undertake surface morphology studies, element mapping and EDS (Energy Dispersive Spectra). The photoluminescence spectra were measured using a photoluminescence spectrometer with a 325 nm excitation wavelength. FTIR (Fourier Transform Infrared Spectrometer) spectrometer was used to measure IR spectra with peaks around 536-634 cm-1. Complex impedance spectroscopy of the Fe3+/ZnO-400 samples were performed at 310 K using a galvanostat in the frequency range of 5 MHz to 50 Hz. The grain edge resistance of the Fe3+/ZnO-400 sample is 18.10 MΩ (at310 K)

Author Biographies

Anil Kaushik, Baba Mastnath University, Rohtak.

Department of Physics, Baba Mastnath University, Rohtak, Haryana, India.

Sunil Kumar Chaudhary, Baba Mastnath University, Rohtak.

Department of Physics, Baba Mastnath University, Rohtak, Haryana, India.

Ajay Kumar Mann, Pandit Neki Ram Sharma Government College, Rohtak.

Pandit Neki Ram Sharma Government College, Rohtak, Haryana, India.


. D. Gao, et al., Room temperature ferromagnetism of pure ZnO nanoparticles, Journal of applied physics 105.11 (2009): 113928.

. T. Sahoo et al., Synthesis and characterization of porous ZnO nanoparticles by hydrothermal treatment of as pure aqueous precursor, Materials Research Bulletin 46.4 (2011): 525-530.

. S. Roy et al., Introducing magnetic properties in Fe-doped ZnO nanoparticles, Applied Physics A 127.6 (2021): 1-9.

. R. Singhal et al., Characterization of ZnO and Fe doped ZnO nanoparticles using fluorescence spectroscopy, Oxide-based Materials and Devices X. Vol. 10919. International Society for Optics and Photonics, 2019.

. C. R. Holkar et al., A critical review on textile wastewater treatments: possible approaches, Journal of environmental management 182 (2016): 351-366.

. A. Mclaren et al., Shape and size effects of ZnO nanocrystals on photocatalytic activity, Journal of the American Chemical Society 131.35 (2009): 12540-12541.

. M. Faraz et al., Synthesis of samarium-doped zinc oxide nanoparticles with improved photocatalytic performance and recyclability under visible light irradiation, New Journal of Chemistry 42.3 (2018): 2295-2305.

. M. Manikandan et al., Development of Sn-doped ZnO based ecofriendly piezoelectric nanogenerator for energy harvesting application, Nanotechnology 31, no. 18 (2020): 185401.

. A. Akdag et al., Structural and morphological properties of Al doped ZnO nanoparticles, In Journal of Physics: Conference Series, vol. 707, no. 1, p. 012020. IOP Publishing, 2016.

. Y. Wang et al., A review of earth abundant ZnO-based materials for thermoelectric and photovoltaic applications, Oxide-based Materials and Devices IX 10533 (2018): 163-179.

. S. Anandan et al., Photocatalytic degradation of 2, 4, 6-trichlorophenol using lanthanum doped ZnO in aqueous suspension, Catalysis Communications 8.9 (2007): 1377-1382.

. Y. Sun et al., Growth of aligned ZnO nanorod arrays by catalyst-free pulsed laser deposition methods, Chemical Physics Letters 396.1-3 (2004): 21-26.

. Huan‐Ming Xiong et al., Sonochemical synthesis of highly luminescent zinc oxide nanoparticles doped with magnesium (II), AngewandteChemie International Edition 48.15 (2009): 2727-2731.

. U. Megha et al., Room temperature AC impedance and dielectric studies of Bi and Sr doped PrCo0. 6Fe0. 4O3 perovskites, Processing and Application of Ceramics 11.1 (2017): 52-59.

. R. Zamiri et al., Structural and dielectric properties of Al-doped ZnO nanostructures, Ceramics International 40.4 (2014): 6031-6036.

. A. Selmi et al., Improvement of dielectric properties of ZnO nanoparticles by Cu doping for tunable microwave devices, Journal of Materials Science: Materials in Electronics 31.21 (2020): 18664-18672.